Answer: slinking

AnswerCrossword Clue
SLINKINGMoving like a fox
SLINKINGLurking.
SLINKINGMoving furtively
slinkingCome or go unobtrusively or furtively
slinkingMove smoothly and quietly with gliding steps, in a stealthy or sensuous manner
slinkingSLINK, to move stealthily